<template>
  <!-- 注册页面的整体盒子 -->
  <div class="reg-container">
    <!-- 注册的盒子 -->
    <div class="reg-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 注册的表单区域 -->
      <!-- el-form里面没用的样式删掉 -->
      <!-- 表单校验的三步：准备校验规则、检查做校验的三个元素model rules prop、当用户点击注册是进行兜底校验 -->
      <el-form
        :model="regForm"
        :rules="regRules"
        ref="regForm"
        class="demo-regForm"
      >
        <el-form-item prop="username">
          <!-- 给input框给上我们想要的属性 -->
          <el-input
            prefix-icon="el-icon-user"
            placeholder="请输入用户名"
            v-model="regForm.username"
          ></el-input>
          <!-- 密码框 -->
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            prefix-icon="el-icon-lock"
            placeholder="请输入密码"
            v-model="regForm.password"
          ></el-input>
        </el-form-item>
        <!--  确认密码框 -->
        <el-form-item prop="repassword">
          <el-input
            prefix-icon="el-icon-lock"
            placeholder="请确认密码"
            v-model="regForm.repassword"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" style="width: 100%" @click="hReg"
            >注册</el-button
          >
          <el-link type="info" @click="$router.push('/login')">去登录</el-link>
        </el-form-item>
        <!-- 复制过来的代码不要忘了加</el-form>后标签 -->
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Reg',
  data() {
    //   确认密码的校验
    const checkPass = (rule, value, callback) => {
      if (value === '') {
        callback(new Error('请再次输入密码'))
      } else if (value !== this.regForm.pass) {
        callback(new Error('两次输入密码不一致!'))
      } else {
        callback()
      }
    }
    return {
      regForm: {
        username: '',
        password: '',
        repassword: ''
      },
      regRules: {
        //   用户名校验包括required必选项 message提示信息 trigger触发时机
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            pattern: /^[a-zA-Z][a-zA-Z0-9]{0,9}$/,
            message: '用户名必须是1到10位的字母或数字，不能以数字开头',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            pattern: /^\S{6,15}]$/,
            message: '密码必须是6到15位的非空字符',
            trigger: 'blur'
          }
        ],
        repassword: [
          { required: true, message: '请再输入一次密码', trigger: 'blur' },
          {
            pattern: /^\S{6,15}]$/,
            validator: checkPass,
            message: '密码必须是6到15位的非空字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    hReg() {
      // 0. 绑定点击事件
      // 1. 兜底校验
      this.$refs.regForm.validate(async (valid) => {
        // console.log(valid)
        // 趁早返回
        if (!valid) return
        // 2. 发请求给服务器
        const { data: res } = await this.$http.post('/api/reg', this.regForm)
        // console.log(res)
        // 3. 根据结果提醒用户
        if (res.code !== 0) return this.$message.error(res.message)
        this.$message.success(res.message)
        // 4. 跳转到登录页
        // 编程式导航 this.$router.push
        this.$router.push('/login')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.reg-container {
  background: url('../../assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100%;

  .reg-box {
    width: 400px;
    height: 335px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    // 加点内边距让登录框不要顶到左右边距
    box-sizing: border-box;
    padding: 0 20px;
    .title-box {
      height: 60px;
      background: url('../../assets/images/login_title.png') center no-repeat;
    }
  }
}
</style>
